Efficient label distribution mechanism for bidirectional paths in MPLS-TP networks
Author(s) -
Zongpeng Du,
Yueming Lu Yueming Lu,
Yuefeng Ji
Publication year - 2012
Publication title -
chinese optics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.617
H-Index - 37
ISSN - 1671-7694
DOI - 10.3788/col201210.020604
Subject(s) - multiprotocol label switching , optics , computer science , label switching , distribution (mathematics) , mechanism (biology) , telecommunications , physics , mathematics , quality of service , quantum mechanics , mathematical analysis
Transport network paths are typically bidirectional and symmetrical. In multi-protocol label switching (MPLS) and generalized MPLS (GMPLS) mechanisms, independent labels are distributed for bidirectional paths. Thus, the requirement of the MPLS transport profile (MPLS-TP), which is a new transport technology, could not be satisfied efficiently. A novel label distribution mechanism for bidirectional paths in MPLS-TP networks is proposed. Labels distributed by the mechanism are symmetrical and can reflect the pairing relationship of the forward and backward directions of the transport path.
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